How to use these 6 textures ripped from a CryEngine game, with cycles render?
I noticed the Cryengine docs section on textures isn't complete but I managed to download a model and look at some of the textures. Hopefully these educated guesses will point you in the right direction.




I'm not seeing anything that matches the texture and color of her skin,
so that could be the game-engine vetex shader coloring the model and
using 1 for texture details. The model I downloaded also had 1a as an
alpha channel for the eyelashes.
Seems to be masking out the face to apply some effect on the lips.
Don't know about the rest.
You guessed it, the normal map. This one doesn't have an alpha
channel to handle gloss as mentioned in the Cryengine docs.
The eyebrows on this image don't match 1, So its possible that they
are only using the blue parts, perhaps in combination with 2.
This seems to be the Unified Detail Map, Which is separate from the
Normal map. This has an alpha channel so its controlling the glossiness.
Possibly for an effect in the eyeball geometry, Perhaps with the
sclera bit in 4


With all this in mind, you may need to do a few adjustments to some textures for blender, and you don't have to use all of them. For example; Blender doesn't use alpha channels to control glossiness, you will need to make a specular map based on the Alpha channel of 5.

The exact setup will depend on whether you are using Blender Internal or Cycles.